At first from memory, I thought I had taken some shots of the same buggers. However once finding the pics and seeing they are slightly different, I consulted the Book of Knowledge (Google image look up) and found mine to be the boxelder bug (Leptocoris trivittatus).
I admit yours look a bit more fearsome! 😀
More red - more fear :D
They do look alike though. Same shame and mean red eyes.